Doosan DX180LC Excavator Service Manual

Table of Contents:-

Safety
Track Excavator Safety…………………………………………………………….. SP000014
Specifications
Specification for DX180LC ………………………………………………………… SP001028
General Maintenance
General Maintenance Procedures ……………………………………………… SP000016
Standard Torques …………………………………………………………………….. SP000813
Upper Structure
Cabin ………………………………………………………………………………………. SP000943
Counterweight…………………………………………………………………………… SP000940
Fuel Tank………………………………………………………………………………… SP001031
Fuel Transfer Pump …………………………………………………………………. SP000021
Swing Bearing………………………………………………………………………….. SP000022
Swing Reduction Gear ……………………………………………………………… SP000915
Lower Structure and Chassis
Track Assembly ……………………………………………………………………….. SP001032
Engine and Drive Train
Drive Coupling (Main Pump) …………………………………………………….. SP001033
Hydraulics
Hydraulic System Troubleshooting, Testing and Adjustment ……….. SP001034
Accumulator……………………………………………………………………………… SP000028
Center Joint (Swivel) ………………………………………………………………… SP000029
Cylinders………………………………………………………………………………….. SP000030
Swing Motor…………………………………………………………………………….. SP000194
Travel Motor…………………………………………………………………………….. SP001036
Main Pump………………………………………………………………………………. SP001030
Main Control Valve…………………………………………………………………… SP001029
PTO Server……………………………………………………………………………… SP000933
Remote Control Valve (Work Lever / Joystick) ………………………….. SP000069
Travel Control Valve (with Damper) ………………………………………….. SP000070
Solenoid Valve Assembly………………………………………………………….. SP000445
Breaker EPPR Valve (Opt)……………………………………………………….. SP000192
Hydraulic Schematic (DX180LC) ……………………………………………….. SP001037
Electrical System
Electrical System ……………………………………………………………………… SP001038
Electrical Schematic (DX180LC)………………………………………………… SP000936
Attachments
Boom and Arm ………………………………………………………………………… SP001039
Bucket……………………………………………………………………………………… SP000939

Doosan DX180LC Manual Instruction Extract:

Add-on Main Relief Valve Operation
1. This relief valve is inserted between the neutral path “HP” and the tank path “LP”. Oil is filled into the inner space (C) through the orifice of the main poppet . The sleeve (2) and main poppet (1) are securely seated by the areal difference between “A” and “B”.
2. When the pressure in the neutral path “HP” reaches the preset pilot spring force, the pilot poppet (3) will be opened.
Oil flows around the pilot poppet (3), through the drill hole (E) and circular gap (D), and is guided to the tank path “LP”.
3. When the pilot poppet (3) is opened, the pressure in the inner space (C) is decreased to open the main poppet (1). Therefore, the oil in “HP” flows directly through path “LP”.

How to Use The Doosan DX180LC Excavator Guide Manual:

This manual provides information for servicing the DX180LC Doosan Excavator. All service procedures are broken down into detailed steps, listed in their recommended sequence. The manual uses both photographs and drawings to help locate and itemize components. The table of Contents on the preceding pages is your best tool for finding the service procedure you need. Be certain to observe all Safety information included in these pages.

A schematic of each of the major engine systems is provided at the beginning of the section of the manual devoted to troubleshooting and repairing that particular system.

Basic safety precautions are list in the Safety section of the Doosan DX180LC Excavator Service Manual. Additional safety precautions are list in the Safety section of the owner/operation/maintenance publication. Specific safety warnings for all these publications are provided in the description of operations where hazards exist. WARNING labels have also been put on the product to provide instructions and to identify specific hazards.